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A server-side request forgery vulnerability exists in Jenkins GitHub Branch Source Plugin…

Priority LOW 21CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub.

Summary

A server-side request forgery vulnerability exists in Jenkins GitHub Branch Source Plugin 2.3.4 and older in Endpoint.java that allows attackers with Overall/Read access to cause Jenkins to send a GET request to a specified URL.

Why it matters now

EPSS 0.00642 51st percentileScored 2026-11-07
Fix Fixed org.jenkins-ci.plugins:github-branch-source (Maven): 2.3.5

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—org.jenkins-ci.plugins:github-branch-source (Maven)before 2.3.52.3.5Patch availableGHSA-9cfq-v2hm-c3xr
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • org.jenkins-ci.plugins:github-branch-source (Maven) Vendor— Affected before 2.3.5 Fixed in 2.3.5 Patch available GHSA-9cfq-v2hm-c3xr

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jenkins:github_branch_source:*:*:*:*:*:jenkins:*:*up to 2.3.4VulnerableJenkins
  • cpe:2.3:a:jenkins:github_branch_source:*:*:*:*:*:jenkins:*:* Versions up to 2.3.4 Vulnerable ·Jenkins

Remediation

  • Fix · GHSA-9cfq-v2hm-c3xr org.jenkins-ci.plugins:github-branch-source (Maven) Fixed in 2.3.5 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat OpenShift Enterprise 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-1000185
  2. 2026-10-03 Alias added: GHSA-9cfq-v2hm-c3xr
  3. 2026-10-21 EPSS moved to the 50th–90th percentile

References

  • TI-2024-15889 Information disclosure in Jenkins GitLab Branch Source Plugin CVSS 3.1MEDIUM 6.5
  • TI-2024-15891 Incorrect comparison in Jenkins GitLab Branch Source Plugin CVSS 3.1MEDIUM 5.3
  • TI-2017-14428 GitHub Branch Source Plugin connects to a user-specified GitHub API URL (e.g. CVSS 3.0MEDIUM 6.3
  • TI-2017-14424 GitHub Branch Source provides a list of applicable credential IDs to allow users… CVSS 3.0MEDIUM 4.3
  • TI-2026-41222 Missing authorization in Jenkins GitHub Branch Source Plugin CVSS 3.1MEDIUM 4.3
  • TI-2024-15890 Cross-site request forgery in Jenkins GitLab Branch Source Plugin CVSS 3.1MEDIUM 4.3
See all 7 →

Sources